Sprinkling device



New, 15, 1%271.

F- C. ORR

SPRINKLING DEVICE Filed April 20, 1925 hu /v 702% v {WA/6H4 C. R

invention relates to sprirltler or wan o n 1 l thstrilm ting oevice oi rotary arm type t is especially tlesignecl for use on lawns a nection protection systems that are nstalleoi in anti aronncl huiltlingso The principal objects oi my invention are, to generally improve upon ancl simplify the construction the Ltorms rotary 1 sprinhlers; to provicle a tlevice wherein that through sairl 'tlevice is ntiliraerl for imparting a continnons or intermittent rotary movement to carries the nozzle; further, to proriciea device oi ens character reterrerl to that is capahle oi ready adjustment to suit fiiiterent conditions and further, to provide a sprinkler that may he economically protluceol ans installel anol which is wholly automatic in its operation anti very etlective in performing its intenkleol functions With the foregoing anol other ohjects in view, my invention consists in certain novel features oLE construction and arrangement of parts that will he hereinafter more fully clescrihecl ancl. claimecl ant illustrates. in the accompanying drawings in which:

l is an elevational view ot a sprinkler cit my improved construction.

Fig. i3 is a plan view of the nozzle enu oi main sprinkler arm.

"Fig. 3 is an enlargefi vertical section taken approximately on the line 3? of Fig, 1.

Fig, t is an enlara'etl detail section talten on the line fei oi Fig. l.

Fig. 5 is a sectional-view, of the jet nozzle that is arrangeol on the "earl 0t one oi the hranches oi the seconclary rotary arm.

Fig; 6 is a cross section taken on the line 66 cit Fig.

Reterring by numerals to the accompanying irawings, which illustrate a practical emhocliment of my invention, 10 designates a tuhular arm, from the intermediate portion of which projects a nipple 11, that is journallerl tor rotation in a tubular hearing 12, and the latter heing secured in any suitable manner to a water or other liquicl supply pipe l3.

A watertight joint is termed between nipple ll ancl its hearing 12 by locating a collar it on the lower endl of said nipple and till till

the torce oi pressure oi the water or liqnicl arranging" a paclring ring or gaslret it hetween sai'rl collar ancl the lower enxl ot nipple,

@ne part of arm ltl to the side cit r; is hent upw; rdly so as to occupy a U clinecl angular plane relative to plan cupietl hy saicl arm to anol fittecl onto s, ct singularly hent terminal portion jet nozzle it llecurerl the opposite endl of arm l0 elhow or fitting it", in which is arrangetl a hearing file-tor an auailiary rotating sprinlrt ler neacl that inclucles a nipple that is alilre construction to, though smaller nip- Piecureil to the upper entl oi nipple union 26 having one of its horinon inclin I slightly upwarcl, ustahly securecl W said inclinecl arm is a short tuhular arm 21, that is provicleol its outer end with a small jet nozzle 22.

@ecured to the other horizontally clisposedl arm oi" union 20 is a horizontally blisposeol tuhular member 23, on the outer encl off which is screw-seated a cap 24 that is provioledl in its side with a laterally fiisposecl jet opening Q5 that occupies an angle of approximately 4t5 relative to a horizontal plane,

The centers of gravity oil the arms at anti ill ' 23 are preterahly dlisposeol so that they are out of balance with each other ancl relative to the axis i'ormetl'loy nipple 1'2 and hearing 18 and, to ohtain hest results under practically all ccndlitions, the two parts of main arm to on opposite sides of the axis tormecl hy nipple ill and hearing lQ'cOunterhalance each other,

Thus, the device will function properly regarcllessof the position of sai axis.

Where it is o esired to use my improvel (levice as an ordinary sprinkler of the arm type, it is only necessary to rotate that portion of main arm 10 that has the hent enol a slight distance to the right or let't so as to osition the hent end that carries nozzle it 1n a plane that is slightly inclined with respect to the vertical plane occupie hy saiol arm 10. (See Fig". 2.)

The reaction of the jet of water issuing from nozzle 16 will cause the main arm 10 to rotate about its axis (the nipple 11 and hearing 12) and, in so doing, the auxiliary arm comprising parts 21 and 23 will be carried lltltl around by said main arm 10 without rotatin on the axis composed of parts 18 and 17.

%he jets of water that issue from ]et nozzle 22 and the lateral jet opening 25 will cover the area immediately adjacent to the axis of the main arm and within the circular area covered by the jet issuing from nozzle 16.

When it is desired to cause the device to operate as a sprinkler of the intermittent or step by step rotary type, it is only necessary to adjust auxiliary nozzle 22 or cap 24 having jet nozzle 25, or both of them, so that the jets issuing from them will react at an angle relative to the vertical plane occupied by the auxiliary arm and its axis, and such reaction will cause the auxiliary arm to rotate upon its axis independently of the rotation o the main arm.

This independent rotation of the auxiliary arm will, at certain points in the rotation of the main arm interfere therewith or react thereon, by virtue of the fact that, it is a natural law that a moving mass has a tendency to move in a straight line, where an opposing force as insuflicient to prevent it from so moving.

The reactionary thrust produced by the auxiliary arm comprising parts 21 and 23 has the efiect of causing the main arm to hesitate or waver slightly during its rotary travel, but it travels ahead in the direction in which the arm is rotating a slight distance further than it is retarded and thus the main arm travels or rotates with an intermittent or step by step movement.

The effort of the action just noted, causes the jet of water that issues from nozzle 16 to travel through a practically straight radial path from the axis of rotation of the main arm, thus approaching in so far as is possible, the ideal results sought for in devices of the character to which my invention relates, namely, maximum coverage without resorting to the use of gearing or other complicated mechanism.

As hereinbefore stated, the jets of water that issue from the jet nozzle 22 and jet opening 25 cover that portion of the ground within the circular area covered by main nozzle 16.

Thus it will be seen that I have produced an automatically acting sprinkling device that is relatively simple in structure, capable of being easily and cheaply produced, readily adjusted so as to rotate with either an even or intermittent movement and which may be advantageously used wherever it is desired to effect a thorough and even distribution of water throughout a comparatively-large circular area.

It will be understood that minor changes in the size, form and construction of the various parts of my improved sprinkling de- 1 vice may be made and substituted for those herein shown and described without departing from the spirit of the invention, the scope of which is set forth in the appended claims.

I claim as my invention:

1. In a sprinkling device a tubular arm mounted to rotate on a vertical axis intermediate its ends, one 'end' of said tubular arm being bent upwardly so as to occupy an inclined plane, a jet nozzle carried by the end of said bent end portion so as to dlscharge a substantially radial jet, a suppl pipe to which the tubular arm is connecte an auxiliary tubular arm mounted for rotation on a vertical axis at the opposite end of the first-mentioned tubular arm and having communication therewith, a portion of said auxiliary tubular arm occupying a horizontal plane and provided at its outer end with a jet orifice that is inclined relative to a horizontal plane and which is disposed substantially at right angles to the axis of said auxiliary arm, the opposite portion of said auxiliary arm occupylng an inclined plane and terminating in a jet nozzle.

2. In a sprinkling device, a tubular member mounted to rotate on a vertical axis intermediate its ends, a supply pipe for said tubular member, a jet nozzle at one end of said tubular member and adapted to discharge a substantially radial jet, an auxiliary sprinkler mounted for rotation on a vertical axis at the opposite end of said tubular member and having communication therewith, both ends of which auxiliary tubular member are provided with discharge openings, one of which is disposed substantially at right angles to the other and positioned so that the jet issuing therefrom will through reaction cause rotation of said auxiliar arm.

3. In a sprinkling device, a main ollow arm mounted to rotate on an axis and having branches extending in opposite directions from said axis, said hollow arm having communication with a supply pipe, a main nozzle arranged at the outer end of said arm, said main nozzle being of such proportions as to permit the main volume of water passing through the sprinkling device to discharge from said nozzle in the form of a substantially radial jet, an auxiliary hollow arm mounted for rotary movement on said main arm to one side of the axis thereof and having communication with said main arm, said auxiliary hollow arm having a jet opening to permit the discharge of water for the purpose of sprinkling the inner area of the ground over-reached by the discharge from the main nozzle and for the purpose of imparting, by virtue of the discharge of water from the jet orifice in the auxiliary arm, a rotary movement to said auxiliary hollow arm andwhich rotary movement causes by the reactionary forces developed the intermittent or wavering rotary movement of the entire device around the axis of the main meagre axis of rotation mounted for rotation on said main arm on the opposite side of the axis thereot from the inclined jet orifice and having communication with said main arm, said auxiliary arm having'at one end a jet orifice arranged so as to discharge a stream of Water'thronghont the inner area of the ground over-reached by the'diseharge of water from the jet orifice ot the main hollow arm and one end of said auxiliary arm heing provided with a reactionary jet orifice.

I ln testimony vvhereot ll afin my signature.

lFINGAL C. URR. 

